Google Charts help required, for Demand & Supply chart with extra vertical line

Actually, I want to create a demand & supply chart (with Google Charts API) this will be a simple Area chart with to area lines (one for demand & other for supply), but also I want to show a third line (not area only line) see the above link for example.

Any ideas how could I draw such Chart, I could only manage to draw without the Center line part.

Hi,
the type of chart in Google Charts would be a scatter chart, setting the lineWidth and pointSize properties accordingly (using https://code.google.com/apis/ajax/playground/?type=visualization#scatter_chart and adding ", lineWidth: 2, pointSize: 0," after the height property).
The issue is that as far as I know there is no chance to combine an area chart with a scatter chart with Google visualization.

HTH
Rainer

0

TUS11Author Commented: 2013-09-29

You can do that using a ComboChart. The trick is in creating the middle line - normally, you draw lines horizontally, using (x, y) coordinate pairs; to draw vertically, invert the pairs to (y, x), but you must keep them ordered by the x-value (otherwise the line will become messed up).